import pandas as pd
list=[[110,120,105],[95,110,108],[98,80,100],[112,106,97]]
index=['王萌','李珊','赵胜','刘文']
columns=['语文','数学','英语']
df=pd.DataFrame(list,index,columns)
print('原始数据:\n',df)
print('选取到王萌的所有成绩：\n',df.loc['王萌'])
print('选取到王萌和刘文的所有成绩：\n',df.iloc[0])
print('选取到王萌和赵胜的所有成绩：\n',df.iloc[[0,3]])
print('选取到王萌和赵胜的语文和数学成绩：\n',df.iloc[0:3])
print('选取到王萌和赵胜的语文和英语成绩：\n',df.iloc[[0,2],[0,1]])

